Sodium citrate dibasic sesquihydrate purum p.a., (T) (250g)

SKU:
71635-250G
  • $44.30

    • Description

    71635 SIGMA-ALDRICH

    Sodium citrate dibasic sesquihydrate

    purum p.a., ≥99.0% (T)

    Synonym: Citric acid disodium salt, Disodium hydrogen citrate sesquihydrate

     

    • CAS Number 6132-05-4

    • Linear Formula HOC(COOH)(CH2COONa)2 · 1.5H2O

    • Molecular Weight 263.11

    •  Beilstein Registry Number 3770069

    •  EC Number 205-623-3

    Properties

    grade   purum p.a.
    assay   ≥99.0% (T)
    pH   4.6-5.2 (25 °C, 50 mg/mL in H2O)
    solubility   water: soluble 263.1  g/L
    anion traces   chloride (Cl-): ≤50 mg/kg
     - sulfate (SO42-): ≤50 mg/kg
    cation traces   Ca: ≤50 mg/kg
    -  Cd: ≤50 mg/kg
    -  Co: ≤50 mg/kg
    -  Cu: ≤50 mg/kg
    -  Fe: ≤50 mg/kg
    -  K: ≤100 mg/kg
    -  Ni: ≤50 mg/kg
    -  Pb: ≤50 mg/kg
    -  Zn: ≤50 mg/kg

    Application

    Sodium citrate dibasic sesquihydrate may be employed in the following studies:
    • In the Supel Que Citrate (EN) tubes for the quantification of pesticides in blackcurrants by triple quadrupole GC-QqQ-MS/MS [Gas chromatography coupled to tandem mass spectrometry (GC-MS/MS) coupled with triple quadrupole (QqQ) analyzer] method.
    • Dispersive solid phase extraction (dSPE) method, commonly referred as QuEChERS.2
    • Preparation of RNA precipitation solution.

    General description

    Sodium citrate dibasic sesquihydrate is a colorless crystalline sodium salt.